25533552 has 80 divisors (see below), whose sum is σ = 73959552. Its totient is φ = 7522560.

The previous prime is 25533551. The next prime is 25533559.

25533552 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25533551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18883 + ... + 20189.

Almost surely, 2^25533552 is an apocalyptic number.

25533552 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25533552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36979776).

25533552 is an abundant number, since it is smaller than the sum of its proper divisors (48426000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25533552 is a wasteful number, since it uses less digits than its factorization.

25533552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1366 (or 1360 counting only the distinct ones).

The product of its digits is 22500, while the sum is 30.

The square root of 25533552 is about 5053.0735201459. The cubic root of 25533552 is about 294.4673025673.

It can be divided in two parts, 2553 and 3552, that added together give a triangular number (6105 = T₁₁₀).

The spelling of 25533552 in words is "twenty-five million, five hundred thirty-three thousand, five hundred fifty-two".